output
19962025
most citedCoherent control with a short-wavelength Free Electron Laser

240 citations

Showing math.FAShow all

7 papers · 1 filter

math.FA2024★ 3 cited

Ostrowski-type inequalities in abstract distance spaces

Vladyslav Babenko, Vira Babenko, Oleg Kovalenko

For non-empty sets X we define notions of distance and pseudo metric with values in a partially ordered set that has a smallest element . If is a distance in (respecti…

math.FA2023★ 1 cited

On some sharp Landau--Kolmogorov--Nagy type inequalities in Sobolev spaces of multivariate functions

V. F. Babenko, V. V. Babenko, O. V. Kovalenko +1

For a function from the Sobolev space ( is an open convex cone), a sharp inequality that estimates via the -norm…

math.FA2023★ 3 cited

Nagy type inequalities in metric measure spaces and some applications

Vladyslav Babenko, Vira Babenko, Oleg Kovalenko +1

We obtain a sharp Nagy type inequality in a metric space with measure that estimates the uniform norm of a function using its -- norm determined by a…

math.FA2023★ 4 cited

On Landau -- Kolmogorov type inequalities for charges and their applications

Vladyslav Babenko, Vira Babenko, Oleg Kovalenko +1

In this article we prove sharp Landau--Kolmogorov type inequalities on a class of charges defined on Lebesgue measurable subsets of a cone in , , that are ab…

math.FA2022

Fixed sets and fixed points in $\Lim$--spaces]{Fixed sets and fixed points for mappings in generalized $\Lim$--spaces of Fréchet

Vladyslav Babenko, Vira Babenko, Oleg Kovalenko

In this article we discuss a possibility to implement a well-known scheme of proof for contraction mapping theorems in a situation, when convergence, families of Cauchy sequences,…

math.FA2021★ 2 cited

Fixed Point Theorems in M-distance Spaces

Vladyslav Babenko, Vira Babenko, Oleg Kovalenko

We prove fixed point theorems in a space with a distance function that takes values in a partially ordered monoid. On the one hand, such an approach allows one to generalize some f…